Broiler burner



Jan. 18,1927. 1,614,746

H. LYON BRO ILER BURNER Filed August 19. 1924 OoooooOooOoo 57 o o o 0 o o o o o o o o 0 O O o o o o o o o 0 0 0 Q 9 o o o o o o o o o o I I f i INVENTOR Patented Jan. 18, 1927.

I UNITED [STATES PATENT OFFICE.

HOWARD LYON, OE GLOUCESTER, NEW JERSEY, ASSIGNOR TO WELSIBACE' OF GLOUCESTER, NEW JERSEY, A CORPORATION OF NEW JERSEY.

COMPANY,

nnoILnn BURNER.

Application filed August 19, 1924. Serial 1T0. 732,980.

to accomplish this concentration of heat more effectively it has heretofore been proposed to rovide deflecting plates or heat radiating odies intermediate the tubes of a broiler burner. I have found, however, that such bodies, in order to be effective, must be of such mass that they can be quickly brought to a temperature at which they become luminous whereby they act as effective heat radiants, and must be of such construction as to be durable to prevent the dropping of objectionable particles on the material being broiled. It is also desirable that such bodies have a uniform radiating surface so as to uniformly subject the material being broiled to heat, that they be flexible enough to prevent distortion, and permit their easy installation, and that they be inexpensive enough to make their addition to commercial burners an attractive roposition.

After a considerable number of experiments, I have found that calorized gauze most effectively meets the requirements of such a heat resistant and radiating body rovided it be constructed to possess the 0 aracteristics hereinafter more fully pointed out.

- In the accompan ing drawings there are shown, for purposes of illustration only, certain preferred embodiments of the present invention, it being understood that the drawings do not define the limits of m invention as changes in the COIlStlllCtlOIl and operation disclosed therein may be made without departing from the spirit of theinvention or scope of my broader claims.

Figure 1 is a bottom plan view of one form of burner constructed in accordance with th1s invention,

Figure 2 is a sectional view on an enlar ed scale on the line II-II of Figure 1 looking in the direction of the arrows, and

Flgures 3 and 4 are views similar to Fi u're 2 illustrating slightly modified embod iments of the invention.

In carrying out the present invention, there may be provided a broiler burner of any desired construction, preferably, however, comprising a Bunsen and mixing tube 2 opening into a burner manifold 3 having a series of branches 4 connected at their opposite ends by a header 5. F

Formed in each of the branches is a plurality of outlet openings 6 referably arranged in rows extending in iverging relatlonshig. These openings are commonly adapte to initially direct the flame and resulting products of combustion downwardly toward the material to be broiled, although, as will be hereinafter fully apparent, the present invention is not dependant upon any particular arrangement of such openings. Above the outlet openings, and between and at the sides of the branches 4 is placed a suitable heat. resistant material 7 preferably comprising a calorized wire gauze. ThlS gauze is so shaped that its under surface will not impair the flame velocity so as to interfere with complete combustion and, with the 1 arrangement of outlet openings illustrated in Figures 1 and 2, will preferably have its edge portions 8 angularly extending and its intermediate portions 9 extending in a sub stantially horizontal direction.

The use of wire gauze is highly desirable as it presents a uniform body insuring um- .form heat radiation and is of such slight temperature at which they become luminous.

withstan not only radiate a considerable amount of heat, but illuminate the material being' broiled in such manner as to facilitate observation thereof.

I, have found that gauze calorizcd in such manner as to preserve 1n each strand a core of metal substantially in its orig nal conch tion while providing an outer protective portion which effectively resists oxidation at.

high temperatures possesses characteristics best suited to this use. For this purpose f have found that gauze finer than sixteen mesh or utilizin wire smaller than twentyseven gau e is impractical due to the tendency of t e same, when being calorized, to

permit the penetration of the aluminum throughoutthe entire body, thereby destroying the central core, and further, due to the tendency of the openings between the strands to become bridged with the calorizing material during the dipping operation, thereby tending to close the openings found to be essentialfor theeffective passage of the products of combustion. I therefore preferably utilize gauze coarser than sixteen mesh and preferably constructed of wire coarser than twenty-seven gauge. A gauze possessin such characteristics is capable of the usual broiler temperatures for substantlally the life of the broiler and may be guickl-y and easily ap lied to the rrespective' of the mes and gauge burner. of thewire, I'control the period of dipping and the period of baking in' such manner as to insure the preservation of a core of the original metal. I s 1 5 In Figure 3 there is illustrated a slightly modified embodiment of the invention in which the burner openings project upwardly, the gauze 11 in such cases having its main portions converging upwardly so as to-substantially conform to the direction of travel of the flame.

In the embodiment, illustrated in "Figure 4 the outlet openings 12 are such as to project the flame in a substantially horizontal direction, and in such cases the gauze 13 will be disposed with its major portion in asubstantially horizontal. plane.

The advantages of the present invention arise from the provision of a broiler burner having associated therewith a heat resisting gauze preferabl of .calorized material in which the stran s have cores of their orig-- -inal material whereby oxidation of the outer surface is effectively prevented while'the desired strength is imparted by reason of the cores in the strands. p

Further advantages arise from the provision of a light mass of the character set forth which may be quickly brought to a luminous temperature, and which possesses a uniform radiatin surface substantially conforming to the direction of 'flame travel and so located as to insure the impinging of the flame thereagainst to an extent suflicient to raise the same'to the temperature desired.

This application is acontinuationin part "recting the flame outwardly therefrom, and

a reticulated heat radiator formed of heat resistant material of slight mass cooperating with said burner and out of the direct path of the flame but shaped to substantially conform. to the flame travel from said burner openings, substantially as described.

3. In a broiler burner, an elongated burner tube having spaced outlet openings there in for directing a flame outwardly therefrom, and a gauze heat radiator of slight' mass cooperating with said burner and out of the direct path of the flame but sufiiciently close thereto to be raised to incande scence, substantially as described.

I 4. In a broiler burner, an elongated burnertube having spaced outlet opemngs therein for directing a flame outwardly therefrom, and a heat radiator gauze of slight mass cooperating with said tube, said gauze being shaped to substantially conform to the di-' rection of travel of the flame-to prevent interference with the flame velocity, substantially as described.

5. In a broiler burner, a bhrnerielementl having spaced outlet openings therein for directing a flame outwardly therefrom, and

a radiator formed of heat resistant material of slight mass cooperating with said element and so located asto be raised to incandescence by the flame issuin from said openings without impeding the flame velocity, said material having a. plurality of openings extending therethrough for the escape of products of combustion, substantially as described. v

6. In of broiler burner, spaced burner branches each having outlet'openings therein,'heat resistant material intermediate said branches shaped to substantially conform to the direction of travel of the flame from said openings, substantially as described.

In a broiler burner, s iaced burner branches each having outlet openings therein, heat resistant calorized gauze intermediate said branches shaped to substantially conform to the direction of travel of the travel of the flame, substantially as described.

9. In a broiler burner, aburner branch having an outlet opening, and reticulated material cooperating with said burner and so closely ad acent said opening as to become incandescent when the burner is in use, said recticulated material comprising a body of 15 calorized gauze substantially conforming to the direction of travel of the flame from said opening.

In testimony whereof I have hereunto set my hand.

HOWARD LYON. 

